Robtex

Up: 217.68.80.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 217.68.88.0/22
Down right: 217.68.92.0/22

IP	Type	Hostname
217.68.89.28	PTR	ante.ultra.hr
217.68.89.130	PTR	kalelarga-01.ultra.hr
217.68.89.139	PTR	kalelarga-10.ultra.hr
217.68.89.193	PTR	trabakul-00.ultra.hr
217.68.89.219	PTR	trabakul-00.ultra.hr
217.68.89.224	PTR	lanterna-nm.ultra.hr
217.68.89.243	PTR	lanterna-18.ultra.hr